AS3 -TypeError＃1009 - 任何简单的方法来找出其中* *对象的引用为空？

我们都得到类型错误＃1009无法访问空对象引用的属性或方法现在，然后 - 没什么大不了的，但有时令人沮丧的调试。

We all get "TypeError #1009 Cannot access a property or method of a null object reference" now and then - no big deal, but sometimes frustrating to debug.

闪存让你的调用堆栈（这是一个开始），但保留这些给你找出其中的空对象是 - 是否有可能发现的到底是哪个的参考抛错误？

Flash gives you the call stack (which is a start), but leaves it up to you to figure out where the null object is - is it possible to find out exactly which reference is throwing the error?

由于以下（容易出错）功能：

Given the following (error prone) function:

function nullObjectReferenceError():void
	{
		var obj:Object;
		var prop:* = obj.nonExistentProperty;
	}

而不是仅仅从类型错误调用堆栈，我想追查是这样的：的在 obj.nonExistentProperty 的无法访问空对象引用的属性或方法STRONG>？ - 这甚至可能

Rather than just the call stack from the TypeError, I'd like to trace something like: "Cannot access a property or method of a null object reference at obj.nonExistentProperty" - Is this even possible?